"This tutorial will walk you through setting up DHCP fail over
on CentOS 5.1 using the default ISC dhcp server, this can easily be
adapted to any other Linux distro out there. You will most likely
need Failover in environments where network down time can not be
tolerated. My home is running a DLNA setup so I need my devices to
be able to obtain network parameters at all times.
"Since DHCP and DNS often go hand in hand i will be configuring
a local DNS server which allows for dynamic updates, such that
hostnames will be automatically updated to DNS when ever a lease is
granted to a client..."